Teepleite

Formula: Na2B(OH)4Cl

Reflected/transmitted colour: Colourless

Pleochroism:

Optical isotropy/anisotropy: Uniaxial

Optical sign: -

Refractive indices: ε = 1.503, ω = 1.519

Bireflectance/Birefringence δ: 0.016

2V angle:

Dispersion:

Optical orientation:

Optical axial plane:

 

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